Key holder



FIG. 1 is a perspective view of the key holder of the claimed design;

FIG. 2 is a front side view of the key holder of FIG. 1;

FIG. 3 is a back side view of the key holder of FIG. 1;

FIG. 4 is a right side view of the key holder of FIG. 1;

FIG. 5 is a left side view of the key holder of FIG. 1;

FIG. 6 is a top side view of the key holder of FIG. 1; and,

FIG. 7 is a bottom side view of the key holder of FIG. 1.

The broken lines in FIG. 1 illustrate the placement of a key and form no part of the claimed design. 

CLAIM I claim the ornamental design for a key holder, as shown and described. 